Datasheet

308
7810C–AVR–10/12
Atmel ATmega328P [Preliminary]
28.6 System and Reset Characteristics
Notes: 1. V
BOT
may be below nominal minimum operating voltage for some devices. For devices where this is the case, the device is
tested down to V
CC
= V
BOT
during the production test. This guarantees that a Brown-Out Reset will occur before V
CC
drops to
a voltage where correct operation of the microcontroller is no longer guaranteed. The test is performed using
BODLEVEL = 100 and BODLEVEL = 101 for ATmega328P.
Table 28-4. Reset, Brown-out and Internal Voltage Characteristics
Symbol Parameter Min Typ Max Units
V
HYST
Brown-out Detector Hysteresis 80 mV
V
BG
Bandgap reference voltage VCC=5V 1.0 1.1 1.2 V
Table 28-5. BODLEVEL Fuse Coding
(1)
BODLEVEL 2:0 Fuses Min V
BOT
Typ V
BOT
Max V
BOT
Units
111 BOD Disabled
110 Reserved
V101 2.5 2.7 2.9
100 4.0 4.3 4.6
011
Reserved
010
001
000